Graybird.FV

It allows to get into the affected computer.
It uses the infected computer to take malicious actions on other users.
It carries out actions that decrease the security level of the computer.
It downloads files from several websites.
It uses stealth techniques to avoid being detected by the user.
It does not spread automatically using its own means.

Affected platforms:

Windows 2003/XP/2000/NT/ME/98

First detected on:

April 26, 2006

Detection updated on:

April 26, 2006

Statistics

No

Proactive protection:

Yes, using TruPrevent Technologies

Brief Description

Graybird.FV is a Trojan, which although seemingly inoffensive, can actually carry out attacks and intrusions.

It affects productivity, preventing tasks from being carried out:

In the affected computer:
it converts the computer into a platform for taking malicious action surreptitiously: spam sending, launch of Denial of Service attacks, malware distribution, etc.

It reduces the security level of the computer:
it opens one or more ports to allow remote access to the computer and takes action that compromises user confidentiality; it changes system permissions, decreasing the security level.

Graybird.FV accesses several websites to download files, which it then runs. These can be any type of file, although they are normally malware.

It uses stealth techniques to avoid being detected by the user:

It modifies system permissions in order to hide itself.

Graybird.FV does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.

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